Development of quick and remote analysis for severe accident reactor, 3-2; Liquid-LIBS studies for the Fukushima Daiichi decommissioning

Ruas, A.; 松本 歩; 大場 弘則  ; 赤岡 克昭 ; 若井田 育夫  

Ruas, A.; Matsumoto, Ayumu; Oba, Hironori; Akaoka, Katsuaki; Wakaida, Ikuo

In the context of the Fukushima Dai-ichi Nuclear Power Plant (F1-NPP) decommissioning process, laser-induced breakdown spectroscopy (LIBS) has many advantages. The purpose of the present work is to demonstrate the on-line monitoring capability of the LIBS coupled with the ultra-thin liquid jet sampling method. The study focuses on zirconium and iron in aqueous solution, considering that these are major elements in the F1-NPP fuel debris.